Apparatus for and method of forming structures of cementitious or other hardening material



Oct. 5, 1943.

WILLIAMS 2,331,066 A APPARATUS FOR HOD OF FORMING STRUCTURES OF CEMENTITI R OTHER HARDENING MATERIAL ed Nov. 2 1939 Patented Oct. 5, 1943 e are no l Y UNITED srlrrlns PAT-E N T orifice. 1

APPARATUS FoR AND METHOD OF FORM- ING STRUCTURES oFcEMENTiTIoUs on oTnER HARDENING MATERIAL Francis A.

Williams, Toronto ontario. Canada,

,assignor. to New-Era Walls, Limited, Toronto,

. Ontario, Canada Application November 21, 1939, Serial No m ,537.

w 11 Claims. My invention relates toan improved method of constructing concrete walls or, structures in which the wall is constructed progressively stage by stage, and in which the facing or exterior portion of the wall is formed'of a surface concrete mixture which is backed by main wall material.

The object of 'my invention is to devise an im proved. method of placing and compacting the surface material and also conditioning. the adjacent portions of the surface material andmain wall material so that they will moreperfectly knit together to form an integral structure.

I attain my object by means of the apparatus and method hereinafter described and illustrated in the accompanying drawing in which:

Fig. l is a plan View of part of the wall constructed in accordance with my invention and showing the means employed; j Fig. 2 a side elevation of the ken away; and I Fig. 3 a section I in the drawing like numerals of reference indicate corresponding parts in the different figures.

Referring to the drawing, 6 indicates an ordinary footing on which a wall is supported.

The" wall will usually be built up in a series same partly brohorizontal courses, the horizontal courses being indicated by dotted lines I. These lines, however,

on-the line 3-3 through Fig. 2. 7

material may escape the spacer tends to compacted from flowing forwardly atransverse barrier 53 is provided near the forward end of the spacer and the H at the oppositesides of the spacer but to the rear of the barrier: having reference to the direction of travel of the agitating spacer unit as a whole.

Close .to' butspaced from the plate 12 -115 a spacer '52 which serves also as an agitatorjtoas sist in compacting the surface materiali The surface material is poure'd'into the narrow space at one side of the agitator while the main body material is pouredinto the wide space at the other side. Meanslnot shown) are provided-for moving the agitator lengthwise of the walland simultaneously agitating it in the vertical plane.

This spacer is provided with a widened filling end as will be seen from which the surface t'ionj- This spacer is so v space is-gradually decreased in width from front to rear and frointop to bottom sothat travelof rial;which compacting is facilitated by the heavier large body, of main wall material behind it. The agitation of the spacer not only compacts the surface material, but the adjacent portion of thefmain wall material, and thus the adjacent portions'of the'surface material and main wall I t actual divisions in the structure as the material are conditioned to quickly merge; tosections-are built, one after the other before there geth as soon asthe -spacer has passed and these has been sufficient setting of the material to prepor contact one anothervent the knitting or bonding together of the material in'the adjacent and superimposed sections into a solid unitary wall. The wall is cast in a suitable form, the front wallof which comprises a series of sections l2, while the rear wall comprises sections wall and rear wall sections are heldin ID of suitable material. The front placeinany desired'manner during the pouring of the concrete and will remain in place until the wall knit securely together so that there will be substantially no danger of separation when left exposed to the weather. I therefore provide the following means foraccomplishing this result.

To prevent the material being positioned and rhas sufficiently set, and, in the case of the rear L40 face material downwardly use of the spacer member has also an- -j0ll1l6l advantage, as it permits the use of quite ,a thin layer of surface; material.

the ffactfthat the spacer serves to work the surthejmaterial below it, and thus avoids the" leaving fofar y gaps the surface material.

775 As the spacer- 52 moves longitudinally ofthe wall it is subjectedto vibration. The narrowing offithespace between the front form" and spacer,

having reference to: the direction of travelaofthe spacer serves to compact the facingiflmater'ial, and the vibration of the spacer not only serves to assist in this compacting, but also serves to assist the flow of the facing material into its place in the finished Wall. Further the agitation of the spacer serves to prepare the adjacent portionofthe facing material, but also the adjacent surface s of the main wall material so that they will flow rapidly together as the spacer passes in a condition in which theywill readily merge or knit together without any distinct line between the materials. I a,

wall material is fed into the wan into the narrow por. shaped thatthe narrow compact the surface mate- This is dueto;

into "close contact with 1 which might otherwise occur-in Y Wall with which said facing material contacts,.

and therefore the plastic facing material will: not position itself satisfactorily unless said friction is overcome by vibrating the spacer. portance of vibrating the spacer to ensure the proper compacting and positioning of the facing material will therefore be apparent.

What I claim as my invention is:

The imprises causing a spacer member to travel; supply- 1. A method of forming a structure of cemen titious or other hardening material which comprises moving a spacer member in a plane substantially parallel to the face of the structure; supplying facing material at one side and main body material at the other side of thespacer member; and agitating said spacer member to compact the facing material; and allowing said facing material and backing material to contact .and knit together after the spacer member has passed.

2. A method of forming a structure of cementitious or other hardening material, which comprises moving a spacer member in a plane substantially parallel to the face of the structure; supplying facing material at one side and main body material at the other side of thespacer member; agitating the facing material to compact it while said spacer member is passing; and allowing said facing material and backing material to contact and knit together after the spacer member has passed. 7

3 A method of forming a structure of'cementitious or other hardening material which comprises supplying facing material at one side of and main body material at the other side 'of' a .spacing member; agitating the facing material to compact it by agitating the spacing member; and removingthe spacing member after the fac-- ing material has been compacted to permit'the facing material and backing material to jean tact and knit together into a unitary structure.

4. A method of forming a structure offcemerititious or other hardening materialwhichcoinprises supplying facing material at one side, and main body material at the other side of a spacer member, and agitating the spacer member to move the facing material into position and condition the adjacent portions of the facing, material and main body material for intimately knitting together, and removing said spacer. member to permitthe prepared portions of thefacing material. and main body material to contact.

5. A method of, forming a structure of cementitious or other hardening material, which comprises supplying facing. material at one side and mg facing material at one side of and main body material at the-ether side of the spacer member; and agitatingthe spacer member while it is travellin to move the facing material into position and condition the adjacent portions of the facing material'and' mainbody material for knitting together after the spacer member has passed.

7. For use informing structures of cementitious or other hardening material, the combinationwith a form wall of a spacer member arranged in spaced relation thereto and arranged to travel parallel to the wall"; and means for vibrating said spacer member during its travel.

6. For use in forming structures of cementitious or other hardening material, the combination with a form wall of a spacer member arranged in. spaced relation thereto and arranged to travel parallel to the wall; and means for vibrating said spacer member during its travel, said spacer member bein arranged at an inclination to the form wall to provide a wide material receiving. space adjacent its forward end and a narrowiiutlet space adjacent its rear end.

9'. For use in forming structures of cementitious or other hardening material, the combination with a form wall of a spacer member arranged in spaced relation thereto and arranged to travel parallel to'the wall';..and' means for vibrating said spacermember during its travel; said spacer member being arranged at an inclination to the form wall to provide a Wide material receiving space atone side adjacent its forward end. and a narrow rearwardly and downwardly directedoutlet'at its rear end.

10, For use in forming structures of' cementitious or otherhardening material, the combination with a form-wall of a spacer member arranged in spaced relation thereto and arranged to travel parallel to said-wall;- and means for vibrating said spacer member during its travel; and a transverse barrier adjacent the forward end ofsaidspacer member.

1 1. The method of, forming a'structure of cementitious; or other; hardening material, which comprises supplying facing. material at one side andmain body material at the other sideof a, spacer member, agitatingthe spacer member to. move the facing material into position and; compact the latter; and causing relative travellingmovement between the-spacer member and materials to? permit the: facing material and main body-,material:to-contact.-. U l l FRANCIS'A; WILLIAMS, 

